CURRENT ELECTRICITY \ #2 OHM's Law & Resistance \ CLASS 12 \ PhysicSeekho \ Asif Ansari

CURRENT ELECTRICITY \ #2 OHM's Law & Resistance \ CLASS 12 \ CBSE ISC ALL STATE BOARDS \ PhysicSeekho \ Asif Sir

Telegram Channel Link 👉 https://t.me/PhysicSeekhoClass12

📚 Welcome to the Lecture#2 of CURRENT ELECTRICITY! ⚡

🔍 Topics Covered in Lecture #2:
1️⃣ Diagramatic representation of the relation between the physical quantities : Electric potential difference, Electric field, Force on Free electrons, Motion of free Electrons, Current.
2️⃣ Condition of Ohm's Law. Statement of Ohm's Law.
3️⃣ Resistance is constant in Ohm's law.
4️⃣ Resistance of the conductor is independent (i) of the current flowing through it and (ii) of the potential difference applied across its ends.
5️⃣ What is Resistance of a conductor ? Resistance is opposition to the floe of current.
6️⃣ Reason for Resistance. Cause of resistance. Resistance occurs due to collision of free electrons with atoms, ions, and themselves.
7️⃣ SI unit of resistance is OHM. Defining one ohm resistance.
8️⃣ Factors affecting resistance of a conductor. (i) length, (ii) area, (iii) temperature, and (iv) nature of material.
🔟 Resistivity or Specific Resistance of the material.
1️⃣1️⃣ Factors on which resistivity depend are : (i) temperature, and (ii) nature of the material.
1️⃣2️⃣ Why temerature should be constant for the validity of ohm's law ?
1️⃣3️⃣ SI unit of resistivity. Ohm metre.
1️⃣4️⃣ Resistivity of a conductor of unit area of cross-section and unit length is numerically equal to its resistance.

-----------------------------------------------------------------------------------------------------------------
Stay tuned for the entire series, and don't forget to join our Telegram channel for updates and additional resources! 👉 https://t.me/PhysicSeekhoClass12

🔔 Don’t forget to Like, Share, and Subscribe to PhysicSeekho for more lectures and exam tips!

------------------------------------------------------------------------------------------------------------------------
#currentelectricity #PhysicsLecture #electriccurrent #electricpotential #ohmslaw #resistance #resistivity #ohm #currentelectricityclass12 #class12physics #Class12 #CBSE #ISC #StateBoards #amu #jmi #jee #iit #neet #basicconcepts #PhysicSeekho #AsifSir #asifansari #physicsiseasy

Class 12 Physics Revision #revision
Physics Chapter 3 Current Electricity
(NCERT)